| 초록 |
Electrochemical property of activated carbon monolith of kenaf was studied for possible application in supercapacitor eletrode. First, NaOH retted kenaf fiber was chopped and then sieved (20 mesh). Next, the fiber (5g) was placed into a mold, followed by pressing at 10k lb, forming column type samples which were then subjected to pyrolysis in a tube furnace at 500, 700 or 900 oC for 4 h under N2 flow, followed by CO2 activation. In addition, KOH activation was also employed for comparison. Then, the samples were cut into thin disc (1mm thick) and then specific capacitance was measured by cyclic voltammetry, while they were also characterized by SEM and N2 sorption study. |
